SLLA578 June   2022 TLIN1431-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Startup
    1. 1.1 Operational Voltages
    2. 1.2 Power-Up and INIT Mode
  4. 2Pin Control
    1. 2.1 Typical Application
    2. 2.2 Power-Up into Normal Mode in Pin Control
      1. 2.2.1 Restart Mode from INIT Mode in Pin Control
      2. 2.2.2 Standby Mode from Restart Mode in Pin Control
      3. 2.2.3 Normal Mode in Pin Control
    3. 2.3 Power-Up into Fast Mode in Pin Control
    4. 2.4 Sleep Mode to Normal Mode in Pin Control
    5. 2.5 Fail-Safe Mode to Normal Mode in Pin Control
  5. 3SPI Control
    1. 3.1 Typical Application
    2. 3.2 Power-Up into Normal Mode in SPI Control
      1. 3.2.1 Restart Mode from INIT Mode in SPI Control
      2. 3.2.2 Standby Mode from Restart Mode in SPI Control
      3. 3.2.3 Normal Mode in SPI Control
    3. 3.3 Power-Up into Fast Mode in SPI Control
    4. 3.4 Sleep Mode to Normal Mode in SPI Control
    5. 3.5 Fail-Safe Mode to Normal Mode in SPI Control
    6. 3.6 Configuring Watchdog through SPI
  6. 4Pin Assignments in Pin Control vs. SPI Control
  7. 5References

2.4 Sleep Mode to Normal Mode in Pin Control

Figure 2-8 Sleep Mode in Pin Control

To return to normal mode from sleep mode, the device must first transition to restart mode due to one of the following conditions:

  • LIN bus wake-up
  • WAKE pin state change
  • EN = high for greater than tFM_CHANGE

Once the device transitions to restart mode, the SWE timer starts. The device must enter standby before this timer times out. Additionally, all faults must be cleared from the device. If either of these two conditions are not met, the device re-enters sleep mode. Otherwise, the same procedure outlined in Section 2.2.2 and Section 2.2.3 applies.
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